Publishing (forking) it from Deurklink to Allseas-PHALCON-system.

Fork of MODSERIAL by Andy K

Committer:
AjK
Date:
Mon Nov 22 09:58:34 2010 +0000
Revision:
8:775f860e94d3
Parent:
7:ffa4a7cb7f8d
Child:
9:b3cdae80e7a9
1.8

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AjK 1:b7e435fbfe8e 1 /* $Id:$
AjK 2:b936b4acbd92 2
AjK 8:775f860e94d3 3 1.8 - 22/11/2010
AjK 8:775f860e94d3 4
AjK 8:775f860e94d3 5 * Added code so that if a buffer is set to zero length then
AjK 8:775f860e94d3 6 MODSERIAL defaults to just using the FIFO for that stream
AjK 8:775f860e94d3 7 thus making the library "fall back" to teh same operation
AjK 8:775f860e94d3 8 that the Mbed Serial library performs.
AjK 8:775f860e94d3 9 * Removed dmaSend() function that should have been removed
AjK 8:775f860e94d3 10 at 1.7
AjK 8:775f860e94d3 11
AjK 7:ffa4a7cb7f8d 12 1.7 - 21/11/2010
AjK 7:ffa4a7cb7f8d 13
AjK 7:ffa4a7cb7f8d 14 * Remove the DMA enum from MODSERIAL.h as it's not currently
AjK 7:ffa4a7cb7f8d 15 ready for release.
AjK 7:ffa4a7cb7f8d 16 * Added page doxygen comments.
AjK 7:ffa4a7cb7f8d 17
AjK 6:c8f77fe1cc10 18 1.6 - 21/11/2010
AjK 6:c8f77fe1cc10 19
AjK 6:c8f77fe1cc10 20 * Version 1.5 solved a blocking problem on putc() when called
AjK 6:c8f77fe1cc10 21 from another ISR. However, isr_tx() invokes a callback of it's
AjK 6:c8f77fe1cc10 22 own when a byte is tranferred from TX buffer to TX FIFO. User
AjK 6:c8f77fe1cc10 23 programs may interpret that as an IRQ callback. That's an ISR
AjK 6:c8f77fe1cc10 24 call from within an existing ISR which is not good. So the
AjK 6:c8f77fe1cc10 25 TxIrq callback from isr_tx is now conditional. It will only
AjK 6:c8f77fe1cc10 26 be called when isr_tx() is actually within it's own ISR and
AjK 6:c8f77fe1cc10 27 not when called from alternate ISR handlers.
AjK 6:c8f77fe1cc10 28
AjK 5:8365c4cf8f33 29 1.5 - 21/11/2010
AjK 5:8365c4cf8f33 30
AjK 5:8365c4cf8f33 31 * Calling putc() (or any derived function that uses it like
AjK 5:8365c4cf8f33 32 printf()) while inside an interrupt service routine can
AjK 5:8365c4cf8f33 33 cause the system to lock up if the TX buffer is full. This
AjK 5:8365c4cf8f33 34 is because bytes are only transferred from the TX buffer to
AjK 5:8365c4cf8f33 35 the TX FIFO via the TX ISR. If we are, say in an RX ISR already,
AjK 5:8365c4cf8f33 36 then the TX ISR will never trigger. The TX buffer stays full and
AjK 5:8365c4cf8f33 37 there is never space to putc() the byte. So, while putc() blocks
AjK 5:8365c4cf8f33 38 waiting for space it calls isr_tx() to ensure if TX FIFO space
AjK 5:8365c4cf8f33 39 becomes available it will move bytes from the TX buffer to TX
AjK 5:8365c4cf8f33 40 FIFO thus removing the blocking condition within putc().
AjK 5:8365c4cf8f33 41
AjK 4:28de979b77cf 42 1.4 - 21/11/2010
AjK 4:28de979b77cf 43
AjK 4:28de979b77cf 44 * Removed all the new DMA code. I wish mbed.org had proper SVN
AjK 4:28de979b77cf 45 versioning, I'm use to working in HEAD and BRANCHES after I've
AjK 4:28de979b77cf 46 released a project. Getting bug reports in current releases
AjK 4:28de979b77cf 47 while trying to dev new code is hard to manage without source
AjK 4:28de979b77cf 48 control of some type!
AjK 4:28de979b77cf 49
AjK 2:b936b4acbd92 50 1.3 - 21/11/2010
AjK 2:b936b4acbd92 51
AjK 2:b936b4acbd92 52 * Fixed a macro problem with txIsBusy()
AjK 2:b936b4acbd92 53 * Started adding code to use "block data" sending using DMA
AjK 3:0f10f536456e 54 * Removed #include "IOMACROS.h"
AjK 1:b7e435fbfe8e 55
AjK 2:b936b4acbd92 56 1.2 - 21/11/2010
AjK 2:b936b4acbd92 57
AjK 2:b936b4acbd92 58 * Removed unsed variables from flushBuffer()
AjK 2:b936b4acbd92 59 * Fixed a bug where both RX AND TX fifos are cleared/reset
AjK 2:b936b4acbd92 60 when just TX OR RX should be cleared.
AjK 2:b936b4acbd92 61 * Fixed a bug that cleared IIR when in fact it should be left
AjK 2:b936b4acbd92 62 alone so that any pending interrupt after flush is handled.
AjK 2:b936b4acbd92 63 * Merged setBase() into init() as it wasn't required anywhere else.
AjK 2:b936b4acbd92 64 * Changed init() to enforce _uidx is set by Serial to define the _base
AjK 2:b936b4acbd92 65 address of the Uart in use.
AjK 2:b936b4acbd92 66
AjK 1:b7e435fbfe8e 67 1.1 - 20/11/2010
AjK 1:b7e435fbfe8e 68
AjK 1:b7e435fbfe8e 69 * Added this file
AjK 1:b7e435fbfe8e 70 * Removed cruft from GETC.cpp
AjK 1:b7e435fbfe8e 71 * "teh" should be "the", why do my fingers do that?
AjK 1:b7e435fbfe8e 72
AjK 1:b7e435fbfe8e 73 1.0 - 20/11/2010
AjK 1:b7e435fbfe8e 74
AjK 1:b7e435fbfe8e 75 * First release.
AjK 1:b7e435fbfe8e 76
AjK 1:b7e435fbfe8e 77 */